a_Red  ( nPalette ) -> nRedIntensity 
   a_Green( nPalette ) -> nGrenIntensity
   a_Blue ( nPalette ) -> nBlueIntensity

   Reads the VGA-ColorCodes and returns the ColorValue (0-64)


   PARAMETERS:
   nPalette    Palette-Number  0=Black,
                                1=Blue
                                2=Green
                                3=LightBlue
                                4=Red  and so on, see table 'Colors'

   RETURN VALUES:
   ColorIntensity / DAC Value

   EXAMPLE:

          // Read ColorCodes and save them in an array
          aColReg  := { a_red  (nPalette),;
                        a_green(nPalette),;
                        a_blue (nPalette) }